Philips, Adrian; Scotchmer, Jo. «Budapest: CASTLE HILL». A: Hungary. Bradt Travel Guides, maig 2010, p. 130. ISBN 978-1-84162-285-9 [Consulta: 6 maig 2015]. «At the square's centre is a statue of Pope Innocent XI, who is known as the 'saviour of Hungary' because of his endeavors in funding the European forces that freed Hungary from Turkish rule.»
